Danfoss FC 300 Operating Instruction

FC 300 Operating Instructions
How to Install
" Fuses
Branch circuit protection:
In order to protect the ins tallation agains t electrical and fire hazard, all branch circuits in
an installation, switch gear, machines e tc., must be shortcircuit and overcurrent protected
according to the national/international regulations.
Short circuit protection:
The frequency converter must be protected against short-circuit to avoid electrical or fire hazard.
Danfoss recommends using the fuses mentioned below to protect service personnel or other
equipment in case of an internal failure in the drive. The frequency converter provides full short
circuit protection in case of a short-circuit on the motor output.
Over current protection:
Provide overload protection to avoid fire hazard due t o overheating of the cables in the installa
tion.
The frequency converter is equipped with an internal over current protection that can be used
for upstream overload protection (UL-applications excluded). See par. 4-18. Moreover, fuses or
circuit breakers can be used to provide the over current prote ction in the installation. Ove
r current
protection must always be carried out according to n ational regulations.
Fuses must be designed for protection in a circuit capable of supplying a maximum of
100,000 A
rms
(symmetrical), 500 V maximum.
Non UL compliance
If UL/cU L is not to b e complied with, we
recommend using the following fuses, w
hich will
ensure compliance with EN50178:
In case of malfunction, not following the
recommendation may result in unneces
sary
damage of the frequency converter.
FC 30X Max. fuse size Voltage Type
K25-K75 10A
1)
200-240 V type gG
1K1-2K2 20A
1)
200-240 V type gG
3K0-3K7 32A
1)
200-240 V type gG
K37-1K5 10A
1)
380-500 V type gG
2K2-4K0 20A
1)
380-500 V type gG
5K5-7K5 32A
1)
380-500 V type gG
11K 63A
1)
380-500 V type gG
15K 63A
1)
380-500 V type gG
18K 63A
1)
380-500 V type gG
22K 80A
1)
380-500 V type gG
1) Max. fuses - see national/inte rnational
regulations for selecting an appli cable fuse size.
UL Compliance
200-240 V
FC 30X Bussmann Bussmann Bussmann SIBA Litte l fuse
Ferraz-
Shawmut
Ferraz-
Shawmut
kW Type RK1 Type J Type T Type RK1 Type RK1 Type CC Type RK1
K25-K75 KTN-R10 JKS-10 JJN-10 5017906-010 KLN-R10 ATM-R10 A2K-10R
1K1-2K2 KTN-R20 JKS-20 JJN-20 5017906-020 KLN-R20 ATM-R20 A2K-20R
3K0-3K7 KTN-R30 JKS-30 JJN-30 5012406-032 KLN-R30 ATM-R30 A2K-30R
22
MG.33.A7.02 - VLT is a registered Danfoss trademark

Danfoss FC 300 Specifications

General

Brand	Danfoss
Model	FC 300
Category	DC Drives
Language	English